Move 4th Gen (grayscale and color) backlight init where it belongs.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@15661 a1c6a512-1295-4272-9138-f99709370657

firmware/target/arm/ipod/backlight-4g_color.c

@@ -42,7 +42,19 @@ void _backlight_on(void)
 
 void _backlight_off(void)
 {
-   /* fades backlight off on 4g */
-   GPO32_ENABLE &= ~0x2000000;
-   outl(0x80000000, 0x7000a010);
+    /* fades backlight off on 4g */
+    GPO32_ENABLE &= ~0x2000000;
+    outl(0x80000000, 0x7000a010);
+}
+
+bool _backlight_init(void)
+{
+    GPIOB_ENABLE |= 0x4; /* B02 enable */
+    GPIOB_ENABLE |= 0x8; /* B03 enable */
+    GPO32_ENABLE |= 0x2000000; /* D01 enable */
+    GPO32_VAL |= 0x2000000;  /* D01 =1 */
+    DEV_EN |= 0x20000;   /* PWM enable */
+
+    _backlight_on();
+    return true;
 }

firmware/target/arm/ipod/backlight-target.h

@@ -42,7 +42,13 @@ void _backlight_hw_enable(bool on);
 #define _BACKLIGHT_FADE_ENABLE
 #endif /* !BOOTLOADER */
 
-#elif defined HAVE_BACKLIGHT_PWM_FADING
+#elif defined(IPOD_4G) || defined(IPOD_COLOR)
+
+bool _backlight_init(void);
+void _backlight_on(void);
+void _backlight_off(void);
+
+#elif defined HAVE_BACKLIGHT_PWM_FADING  /* Mini G1, G2 */
 
 #define _backlight_init() true
 void _backlight_hw_on(void);
@@ -58,7 +64,7 @@ void _backlight_hw_off(void);
 #define _backlight_off_normal() _backlight_hw_off()
 #endif
 
-#else
+#else /* G1, G2, G3 */
 
 #define _backlight_init() true
 void _backlight_on(void);

firmware/target/arm/ipod/lcd-color_nano.c

@@ -102,14 +102,6 @@ void lcd_init_device(void)
             lcd_type = 1;
         }
     }
-
-    GPIOB_ENABLE |= 0x4; /* B02 enable */
-    GPIOB_ENABLE |= 0x8; /* B03 enable */
-    GPO32_ENABLE |= 0x2000000; /* D01 enable */
-    GPO32_VAL |= 0x2000000;  /* D01 =1 */
-
-    DEV_EN |= 0x20000;   /* PWM enable */
-
 #elif CONFIG_LCD == LCD_IPODNANO
     /* iPodLinux doesn't appear have any LCD init code for the Nano */
 #endif

firmware/target/arm/ipod/lcd-gray.c

@@ -172,15 +172,6 @@ void lcd_init_device(void)
 #endif
     lcd_set_flip(false);
     lcd_cmd_and_data(R_ENTRY_MODE, 0x0000);
-
-#ifdef IPOD_4G
-    GPIOB_ENABLE |= 0x4; /* B02 enable */
-    GPIOB_ENABLE |= 0x8; /* B03 enable */
-    GPO32_ENABLE |= 0x2000000; /* D01 enable */
-    GPO32_VAL |= 0x2000000;  /* D01 =1 */
-
-    DEV_EN |= 0x20000;   /* PWM enable */
-#endif
 }
 
 /*** hardware configuration ***/